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Nondisjunction

Nondisjunction

An error in chromosome segregation that can produce cells with an abnormal number of chromosomes.

Overview

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If do not separate as expected during cell division, some new cells may receive too many or too few copies.

Quick Facts

AT A GLANCE
TopicHeredity & Cell Division

Follow the Connections

See how Nondisjunction links to other biological records.

Open network
ProcessMeiosiscan have error
All 1 Structured Connections
Meiosis · ProcessCAN HAVE ERROR →Nondisjunction · Process

Recommended Reading

Trusted references for learning more about Nondisjunction.

textbookThe Process of MeiosisOpenStax Biology 2e textbookThe Cell CycleOpenStax Biology 2e
Research Claims

Aneuploidy can arise from segregation errors, rescue events, or mosaic cell lineages. A pedigree or karyotype alone does not establish the underlying mechanism.